• Fibers and Polymers
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• 제6권4호
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• pp.332-335
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• 2005

The fibrogram theory is newly derived from the superposition principle of the conventional staple diagram, in which the left-hand ends of the fibers have to share a common starting point in order for the fiber length distribution to be measured, and the right-hand ends of the fibers form points. It is shown that the fibrogram is the staple diagram of the fiber sample having different random starting points, as well as the double cumulative distribution function of the frequency length function in the length biased sample. Also, the various means, viz. the numerical mean length, numerical mean length in median, length biased mean length, and length biased mean length in median, and the various upper half means, viz. the numerical upper half mean length, numerical upper half mean length in median, length biased upper half mean length, and length biased upper half mean length in median, are discussed in relation to the cotton blending process.

• 한국동물학회지
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• 제35권2호
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• pp.231-239
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• 1992

For the analysis of the relative grouch of six body pans, such as carapace width. abdominal length, abdominal width, cheliped length, second pereiopod length and third pereiopod length, to the carapace length of crayfish (Comboroides similis Koelbel), the equation Y = bXa were applied. The results were as follows: 1. In the relative srourth of each body part to the carapace length, abdominal width and abdomial length in both sexes showed as positive allometrv, the third pereiopod length in both sexes as isometry and the rest shouted as negative. The least coefficient of the relative growth was found in cheliped length in female (0.9300).2. The grolwth gradient of each body part to the carapace length in each sex revealed decreasing pattern in abdominal length and third pereiopod length in both sexes and the abdominal width in male with the growth centers on the initial growth period. and the rest showed increasing pattern with the growth centers on the 6th growvth period except the abdomini,d uridth in female on the 3rd growth period.

• 대한물리의학회지
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• 제15권1호
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• pp.77-84
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• 2020

PURPOSE: This study compared the activities of the trunk muscles during crutch walking to determine which of the crutch length measurements is most beneficial. METHODS: Twenty young women volunteered to participate in this study. After adjusting crutch length, the participants performed a three-point walking with nondominant leg limited in weight bearing. This study used six crutch length measurements: (1) Height-40.6cm, (2) Height'.77, (3) Olecranon-to-finger length, (4) Axillary-toheel length, (5) Arm-span length-40.6cm, and (6) Arm-span length'.77. The EMG activities of the internal oblique (IO), rectus abdominis (RA), multifidus (MF), and erector spinae (ES), muscles on the weight bearing side were monitored using wireless surface EMG. RESULTS: The EMG activities of the RA and ES appeared to be significantly different among the crutch length measurements (p<.05). The post-hoc test showed that the 'Arm-span length-40.6cm' was significantly greater in the RA activity when compared to the 'Height'.77' and 'Axillary-to-heel length' measurements, and in the ES activity when compared to 'Height'.77' measurements. Furthermore, IO/RA and MF/ES ratios showed significant differences among the crutch length measurements (p<.05). In the post-hoc test, significant difference was observed between 'Olecranon-to-finger length' and 'Arm-span length-40.6cm' for the IO/RA ratio, and between 'Height'.77' and 'Olecranon-to-finger length' and between 'Height'.77' and 'Arm-span length-40.6cm' measurement for the MF/ES ratio. CONCLUSION: These findings suggest that the 'Height'.77' measurement is relatively advantageous to optimize the activities of trunk muscles during the crutch walking, and allow simple measurements of the crutch length.

• 복식
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• 제11권
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• pp.31-43
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• 1987

The present research is to study a variation of skirt length in the time series, from 1955 to 1986. The results are summarized as follows; 1. The most important event is the acceptance of Mini skirts during this period. This phenomenon will play an important role in later skirt length. 2. The year of the shortest skirt length is 1972, while the year of the longest skirt length is 1983. 3. Based upon the year of the shortest skirt length, the periods of the same skirt length are as follows; 1956-1975. 1964-1978. 1959, 1960-1980, 1981. 1961-1982. This phenomenon is irregularly appeared in this study, but shows the change of recurring skirt length. 4. The skirt length has been changed slowly and continuously during the long period of time. In particular, to reach the shortest skirt length takes longer time than that of the longest skirt length. 5. It has taken 6-8 years to reach the top period of Mini skirts (1971-1973) since shorts are introduced. Comparing this phenomenon in Korea with that in Japan, the time difference is about two years. 6. The periods of various skirts length are the year of 1970-1971 and the year of 1972-1973; This result is assumed that individual persons accept sooner or later the changed skirt length. 7. It is belived that Mini skirts are appeared and popularized by external factors. Once Mini skirts are accepted, we can expect that they will be continuosly changed in the course of recurring skirt length.

• 한국전기전자재료학회논문지
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• 제13권11호
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• pp.932-937
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• 2000

The length extensional vibration mode of a piezoelectric ceramic substrate is used in fabricating the ultra-small size resonators and filters. In general, the three side ratios of the rectangular substrate affect the resonant characteristics of the resonator using its length extensional vibration. In this paper, their relationships are studied. We know that changing the ratio of its length to its width makes possible to change the resonant frequency of the width vibration without degrading the length extensional vibration. And frequency constant for length extensional vibration becomes slightly small as the substrate thickness becomes thin, but it does not change as its length changes. Electro-mechanical coupling factor for length extensional vibration, k$\_$31/ does not change as its length changes within length/width$\geq$4, but it becomes small as its width increases.

• 복식
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• 제51권2호
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• pp.193-203
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• 2001

The hip-length jacket(유) worn by the Korean from the ancient times is tole prototype of the contemporary jacket. Hip-length jacket was transferred to Japan and worn by all the people beyond the class. From 12C, the King and the high class people wore the clothing influenced by Tang(唐) country but the common people continuously wore the hip-length jacket. Currently the hip-length jacket is worn by the merchant and is used as the clothing of the celebration. The hip-length jacket has not been much changed in terms of the form.

• PNF and Movement
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• 제7권2호
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• pp.1-10
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• 2009

This research measures the conditions of spinal scoliosis of college students and analyses the factors that affect spinal scoliosis. From September 15, 2008 to October 30, 2008, the study was conducted with 142 C College students and measured the degrees of spinal scoliosis. The analysis was evaluated according to the Pneumex Analysis program. The collected data was compiled into statistics using the SPSS PC+ 12.0 program. The results were as follows: 1. It appeared that in the cases of C curve, reverse C curve, S curve, and the normal, there was a statistical significance(p=.010) between the conditions of spinal scoliosis of the two genders. 2. It appeared that the comparison among the three groups according to the characteristics of the subjects showed a statistical significance in spinal length(p=.000) in the C curve group, age(p=.019) and spinal length(p=.004) in the reverse C curve group, and spinal length (p=.035), difference in apparent leg length(p=.019), and difference in true leg length(p=.012) in the S curve group. 3. It appeared that in the normal group without spinal scoliosis, the results of comparing the differences in apparent true leg length and spinal length according to the characteristics of the subjects showed a statistical significance in spinal length and gender(p=.000), age (p=.008), height(p=.000), and whether or not there was a regular exercise over once per week(p=.001). 4. On the correlations between C curve, reverse C curve, and S curve and differences in apparent true leg length and spinal length, it appeared that: (a) As the difference in apparent leg length gets bigger the difference in true leg length gets big in C curve(r=.551, p=.000). (b) As the difference in apparent leg length gets bigger the difference in true leg length gets big in reverse C curve(r=.511, p=.006). (c) There is no correlation in S curve.

• 디지털융복합연구
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• 제16권10호
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• pp.479-484
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• 2018

일제 강점기 여성들 one length hair style의 변천사 및 형태학적 분석을 시도한 연구로서 선행논문과 저서를 바탕으로 형태, 질감, 색상 등 헤어디자인의 구성 요소들을 분석하여 다양한 형태의 one length hair style 커트가 가능해지는데 연구의 목적이 있다. 연구 결과 1910년-1920년대 one length hair style은 커트 길이의 단차가 전혀 없는 out line을 지닌 형태, 자연 그대로의 모발 질감, 자연 모발 색상을 보였다. 1930년대 one length hair style은 약간의 커트 길이의 단차를 보이면서 다이아몬드 형태, 자연스런 질감의 narrow wave, 과산화수소나 oxygenated water을 이용한 약간의 탈색이 이뤄졌다. 1940년대 one length hair style은 형태, 질감, 색상 면에서 화려한 미(美)를 추구하려는 특이점이 발견되지 않았다. 본 연구를 통해 one length hair style에 관한 심층적이고 세분화 된 후속 연구가 가능해지며, 헤어미용 교육의 기초 자료 및 뉴 모드의 트렌드 개발을 위한 초석으로 작용하리라 사료한다.

• 말소리와 음성과학
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• 제1권2호
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• pp.85-94
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• 2009

The purpose of this study was to see the effects of pitch and length patterns on spoken word recognition. In Experiment 1, a syllable monitoring task was used to see the effects of pitch and length on the pre-lexical level of spoken word recognition. For both Seoul dialect speakers and Daegu dialect speakers, pitch and length did not affect the syllable detection processes. This result implies that there is little effect of pitch and length in pre-lexical processing. In Experiment 2, a lexical decision task was used to see the effect of pitch and length on the lexical access level of spoken word recognition. In this experiment, word frequency (low and high) as well as pitch and length was manipulated. The results showed that pitch and length information did not play an important role for Seoul dialect speakers, but that it did affect lexical decision processing for Daegu dialect speakers. Pitch and length seem to affect lexical access during the word recognition process of Daegu dialect speakers.

• 한국농업기계학회:학술대회논문집
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• 한국농업기계학회 1996년도 International Conference on Agricultural Machinery Engineering Proceedings
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• pp.792-801
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• 1996

A thinning algorithm -based image analysis technique was developed to measure corn root lengths. The root length measurement method was evaluated by comparing thread lengths measured by the image analysis system with actual thread lengths. The length measurement method accurately estimated actual thread lengths (less than 2% calculated error). Also, a rapid root length density measurement procedure, which utilizes the above root length measurement method, was developed to estimate corn root length density without washing the roots. Root length densities estimated from the cut soil surface of core samples taken from the field were paired with the root length densities determined from washed roots from the same soil core sample. A linear relationship between these two values was expected and was found. Eliminating the root washing procedure reduces the time required for measuring corn root length density substantially.